بورصه
19-10-2010, 00:10
Physics Department
Date: Unit ( 1 )
Grade: 10 ( SI units )
Name:………………………………...………………………………………
رؤية المدرسة: تخريج جيل من الطلاب، متعلم ومثقف، متمسك بأصوله الثقافية سواء أكان ذلك عبر الدين الإسلامي أو العادات والتقاليد أو التراث مما يبني شخصية متوازنة متطورة متميزة.
Worksheet(1) UNITS pg NO ( 6 , 7) textbook
The Standards : - Be familiar with fundamental and derived SI units and use appropriate prefixes, manipulate ranges of magnitude and express quantities correctly in standard form in SI format.
Definition: Physical Quantity
A physical quantity is anything that you can measure. For example, length, temperature, distance and time are physical quantities.
Unit الوحدة - Symbol الرمز - physical quantity كميات فيزيائية -
Base quantities and units :
Symbol
Unit
Physical quantity
Length
kg
Second
Electrical current
Kelvin
Mole
cd
Derived quantities and units :
Symbol
Unit
Physical quantity
Kg / m3
Kilogram per cubic meter
Density
Kg m / s
Kilogram meter per second
Momentum
Newton
Force
Pascal
Pressure
Joule
Work ( energy )
Watt
Power
Coulomb
Electrical charge
Volt
Potential difference
Ω
Ohm
Resistance
What did you learn ?
Khalifa Secondary Independent School for Boys
Physics Department
Date: / /
Grade: 10 A ( SI units )
Name:………………………………...………………………………………
رؤية المدرسة: تخريج جيل من الطلاب، متعلم ومثقف، متمسك بأصوله الثقافية سواء أكان ذلك عبر الدين الإسلامي أو العادات والتقاليد أو التراث مما يبني شخصية متوازنة متطورة متميزة.
Worksheet(2) – UNITS - pg NO ( 8 , 9 ) textbook
The Standards : - Distinguish between precision and accuracy; know how to ensure both in physical procedures.
Prefixes :
Multiplier
Sympol
prefix
G
giga
M
mega
K kilo
M milli
μ micro
n nano
P pico
What did you learn ?
Khalifa Secondary Independent School for Boys
Physics Department
Date: / /
Grade: 10 A ( SI units )
Name:………………………………...………………………………………
رؤية المدرسة: تخريج جيل من الطلاب، متعلم ومثقف، متمسك بأصوله الثقافية سواء أكان ذلك عبر الدين الإسلامي أو العادات والتقاليد أو التراث مما يبني شخصية متوازنة متطورة متميزة.
Scientific notation الصورة العلمية - decimal العشري
Scientific Notation :
Steps :
Move decimal left
Leave only one number in front of decimal
Write number without zeros
Count how many places you moved decimal . Make that your power of ten
Practice Problem :
Q1 ) Write in scientific notation Decide the power of ten.
a) 93000000 = …………………………….
b) 98500000 = ………………….………….
c) 64100000000 = …………………………….
d) 0.0000000042 = …………………………..
e) 0.00000000902 = …………………………..
Changing scientific notation to standard form :
Simply move the decimal point to the right for positive exponent 10
Move the decimal point to the left for negative exponent 10
(Use zeros to fill in places.)
Q2 ) Express 1.8 x 10-4 in decimal notation.
Answer : ……………………………………………………………………………….
Q3 ) Express 4.58 x 106 in decimal notation
Answer : ………………………………………………………………………………..
Q4 ) Given: 5.093 x 106
Answer : ………………………………………………………………………………..
Q5 ) Given: 1.976 x 10-4
Answer : ………………………………………………………………………………...
Chick your answer :
1 – Complete :
1 – 10 minutes = sec
2 – 5 km = m
3 – 200 kg = gm
4 – 300 Cm = m
5 – 1000 gm = kg
2 – Match each quantity in group ( A ) with its corresponding unit in group ( B )
Group ( A ) Group ( B )
Speed Ohm
Force Volt
Pressure coulomb
Acceleration Watt
Power m / s
Resistance Newton
Potential difference m / s2
Electric charge Pascal
3 – Can you complete the following sentences :
1 – Measurement must be given as a number multiplied by a …………….
2 – Seconds , meters , kilograms are all ………………. Units .
3 – The units made up of combination of base units are known as ………. Units .
4 – Put ( √ ) in front of the correct statement and ( x ) in from of the wrong one
and try to correct the wrong one .
1 – The meter is a derived quantity .
2 – meter / sec is the measuring unit of velocity .
3 – N / m2 is the measuring unit of pressure .
4 – kg m-3 is the measuring unit of density .
5 – Newton is the measuring unit of Force .
6 – Pascal is the measuring unit of pressure .
7 - Joule is the measuring unit of power .
8 – Watt is the measuring unit of work ( energy ) .
5 – Rewrite each of the following quantities using a suitable prefix :
1 – 2 000 000 000 J =
2 – 5900 g =
3 – 0.005 sec =
4 – 345000 N =
5 – 0.000 02 m =
Khalifa Secondary Independent School for Boys
Physics Department
Date:
Grade: 10 Vectors and scalars
Name:………………………………...………………………………………
رؤية المدرسة: تخريج جيل من الطلاب، متعلم ومثقف، متمسك بأصوله الثقافية سواء أكان ذلك عبر الدين الإسلامي أو العادات والتقاليد أو التراث مما يبني شخصية متوازنة متطورة متميزة.
Worksheet(3) – UNITS - pg NO ( 10 ) textbook
The standard : - Distinguish between vector and scalar quantities, manipulate them appropriately and interpret their meaning.
Vectors المتجه - scalars quantities الكمية القياسية - magnitude قيمه
Vectors and scalars quantities
Scalar quantity :
which have magnitude (size) without direction .
Examples :
time, speed and distance
Vector quantity :
which have magnitude (size) and direction .
Examples :
velocity, acceleration , displacement ,weight and force
what did you learn ?
In your text book .. read about Vectors and scalars :
• Use the quantities physics to Complete the table bellow :
Distance – displacement – speed – velocity – mass – weight – pressure – force – energy – momentum – temperature – acceleration – volume – electric current – density – torque .
Scalars quantities Vectors quantities
what did you learn ?
Representing vectors :
• Vectors can be represented by arrows .
- The length of the arrow represents the magnitude of the vector .
- The direction of the arrow represents the direction of the vector .
Some examples :
a) Force vectors :
1 - draw a horizontal force of 20 N
2 - draw a vertical force of 10 N
3 – draw the vector for a force of 15 N at 20 to the horizontal .
b) Velocity vectors :
1 – Draw a velocity of 30 m/s in N E direction
2 – Draw a velocity of 20 m/s due west .
3 - Draw a velocity of 30 m/s in N W direction
Khalifa Secondary Independent School for Boys
Physics Department
Date:
Grade: 10
Name:………………………………...………………………………………
Worksheet(4) – UNITS - pg NO ( 10 ) textbook
Horizontal أفقي - vertical رأسي - Vector quantity كميات متجهه - Scalar quantity كميات قياسية
* Complete the following table with the suitable quantities and units :
Vector quantity unit Scalar quantity Unit
* Draw the diagram which represent the following states :
a) A horizontal force of 5 N
b) A vertical force of 15 N
c) A velocity of 40 m/s in a NE direction
d) A velocity of 30 m/s due west .
-----------------------------------------------------------------------------------------------------------------
Website :
1. www.physicsclassroom.com/Class/1DKin/U1L1b.cfm
http://physics.nist.gov/cuu/Units/units.html
Table 5. SI prefixes :
Factor Name Symbol Factor Name Symbol
101 deca da 10–1 deci D
102 hecto h 10–2 centi C
103 kilo k 10–3 milli M
106 mega M 10–6 micro µ
109 giga G 10–9 nano N
1012 tera T 10–12 pico P
1015 peta P 10–15 femto F
1018 exa E 10–18 atto A
1021 zetta Z 10–21 zepto Z
1024 yotta Y 10–24 yocto Y
Prefix symbols are printed
Khalifa Secondary Independent School for Boys
Physics Department
Date:
Grade: 10
Name:………………………………...………………………………………
Worksheet(5) – UNITS – pg NO ( 11 ) textbook
Vector addition جمع المتجهات - resultant الناتجة -
Vector addition
The vectors resultant :
F1
a) In the same direction : F2
Resultant = F1 + F2 resultant F1+F2
b) In opposite direction : F1
Resultant = F1- F2 F2
resultant F1- F2
Examples :
Find the resultant to :
1 – When you walk at steady velocity of 1.5 m/s and walk forwards along the
walkway at 2 m/s . what is the resultant velocity ?
2 – One Vector 10 m at North direction and 15 m at south direction .
What did you learn ?
Khalifa Secondary Independent School for Boys
Physics Department
Date :
Grade: 10
Name:………………………………...………………………………………
Worksheet(6) – UNITS – pg NO ( 12 ) textbook
Perpendicular vectors المتجهات المتعامدة
Perpendicular vectors
a. A man tries to row directly across a river. He rows at a velocity of 3 ms-1. The river has a current of velocity 4 ms-1 parallel to the banks. Calculate the resultant velocity of the boat.
b. Two ropes are tied to a large boulder one. Rope is pulled with a force of 400 N due east. The other rope is pulled with a force of 300 N due south.
a) Draw a vector diagram to show these forces.
b) What is the magnitude and direction of the resultant force on the boulder?
What did you learn ?
3) Calculate the resultant of the two following vectors:
R 3N
4N
4) Calculate the resultant of the two following vectors:
8N
6N
R
Khalifa Secondary Independent School for Boys
Physics Department
Date:
Grade: 10
Name:………………………………...……………………………………… Group ( )
Worksheet(7) – UNITS – pg NO ( 14 ) textbook
Resolving vectors تحليل المتجهات
Resolving vectors
1) A tennis player hits a ball at 10 m s-1 at an angle of 30o to the ground what are the initial
horizontal and vertical components of velocity of the ball??
2) 2) A ball is kicked with a force of 120 N at 60ْ to the horizontal
3) Calculate the horizontal component of the force.
4) Calculate the vertical component of the force.
What did you learn ?
3) Write the X component and the Y component of the vector 10 N
A
10N
30ْ
AX =
AY =
4) Write the X component and the Y component of the vector 8 N
60ْ
8N
A
AX =
AY =
LAB REPORT/ Grade 10 A
10A.25.2
The standard :- Distinguish between precision and accuracy; know how to ensure both in physical procedures.
Student Name: ………………………………………………… class /
Using instruments to measure the values of physical quantities:
Instrument (1)
The shape on the left side represents a ruler.
What is the main purpose of the ruler? And what it can help you to do?
----------------------------------------------------------------------------------------------------------------------
Method:
1- Use the ruler to measure the length of your pen
2- Record your answer using appropriate scale and convert it to meters.
Record in ( cm ) Record in (meters)
1
2
Instrument (2)
The shape on the left side represents a Micrometer.
Do you think we can measure the thickness of a paper or the opening of a Pepsi bottle?
-----------------------------------------------------------
Method:
1-Use the micrometer to measure the thickness of the paper.
2- Record your answer using appropriate scale and change it to centimeters.
Record in ( mm ) Record in (m)
1 Paper thickness
2 Metal bar
Instrument (3)
Record in ( mm ) Record in ( m )
1 Pen diameter
2 Book thickness
Khalifa Secondary Independent School for Boys
Physics Department
Date : / /
Name : ………………………………………………………………. Group ( )
Home work ( 1 )
Accuracy الدقة - precision الدقة - derived units الوحدات المشتقة
Q1) Write the term that correctly completes each statement. Use each term once.
Accuracy base units derived unit's kilogramMeter precision scientific notation second
SI significant digits
1. The SI base unit of mass is the ----------------------------.
2. The SI base unit of length is the ----------------------------
3. The System International d’Unités, --------------------------- , is a system of
measurement established by an international committee.
4. Units that are combinations of base units are ----------------------------
5. The SI base unit of time is the ----------------------------
Q1: Multiple choices: For each question, choose the answer you consider the best
Which of the following is a base unit.
a. centigrade
b. ampere
c. centimeter
d. watts
The SI unit of mass is
a. gram
b. kilogram
c. centigram
d. mille
If the SI unit of force is N, then SI unit for displacement and weight are:
a. cm and ms-1
b. m and N
c. m and kg
d. km and ms-1
Khalifa Secondary Independent School for Boys
Physics Department
Date : / / Grade 10
Name : ……………………………………………………………….
Home work ( 2 )
Q1) Write in scientific notation Decide the power of ten.
1) 98500000 = ------------------------
2) 0.0000641 = -----------------------
3) 279000000 = ------------------------
Q2) Express 0.0000000902 in scientific notation.
--------------------------------------------------------
Q3) Express 1.8 x 10-4 in decimal notation
---------------------------------------------------------
Q4) Express 4.58 x 106 in decimal notation.
----------------------------------------------------
Q5) Changing scientific notation to standard form.
1) 5.093 x 106 = -----------------------
2) 1.976 x 10-4 = -----------------------
Khalifa independent secondary school for boys
Physics department
Date: Unit (2 )
Grade: 10 ( motion )
Name:………………………………...………………………………………
رؤية المدرسة: تخريج جيل من الطلاب، متعلم ومثقف، متمسك بأصوله الثقافية سواء أكان ذلك عبر الدين الإسلامي أو العادات والتقاليد أو التراث مما يبني شخصية متوازنة متطورة متميزة.
Worksheet (1) units pg NO. 32- 35
================================================== ==========
The standards : Understand the concepts of displacement, speed, velocity and acceleration, represent them graphically and interpret graphs that represent them.
Acceleration العجلة - displacement الإزاحة - scalar quantity الكمية القياسية vector quantity كمية المتجهات velocity السرعة المتجهة speed السرعة
Mechanics
Describing motion
Distance : It is a scalar quantity describe the total length of the path travel by an object
Displacement : It is a vector quantity describe the length of the straight line between the
initial point and the final point of the object .
Or : Its direction is from the initial point to the final point .
d
* The graph in shown ( a ) initial point ( d ) final point ) : c
# Distance =
# Displacement = a b
Work sheet :
Q1 : * look to the graph and find : 50 km 30 km
- distance =
- displacement = 40 km
What did you learn ?
Q2 : Complete the table :
Distance Displacement
Definition
SI unit
The kind of quantity
Speed : Is the distance moved per unit time . or ( rate of change distance )
- The S I unit for speed is the meter per second ( m /s or ms-1 ) .
- It is scalar quantity.
Speed = distance moved ( m )
Time taken ( s )
Note :
- If the speed is not constant .
we calculate the average speed for the whole journey instead
Average speed = total distance traveled ( m )
Total time taken ( S )
Example ( 1 ) :
A boy running in a race covers 60 m in 12 s .
a) What is the speed in ms-1 .
b) If the boy takes 40 s to complete the race , how far did he run ?
Velocity : It is the rate of change of displacement .
- It is a vector quantity .
average Velocity = total displacement ( m )
Time taken ( s )
Note : For motion in a straight line you can use a + or – to indicate direction .
For example :
+ 10 m / s ( velocity of 10 m / s to the right )
- 10 m / s ( velocity of 10 m / s to the left )
Acceleration : is the rate of change of velocity .
- The S I unit is ( meter per square second ) ( m/s2 or ms-2 )
- It is a vector quantity .
Acceleration = change in velocity
Time
Acceleration = ( final velocity – initial velocity )
Time taken
a = v – u
t
Note :
1 - If the velocity increases .
- We say it is positive acceleration or ( accelerating تعجيل )
2 - If the velocity decreases .
- We say it is negative acceleration or ( deceleration تباطؤ )
Date: Unit ( 1 )
Grade: 10 ( SI units )
Name:………………………………...………………………………………
رؤية المدرسة: تخريج جيل من الطلاب، متعلم ومثقف، متمسك بأصوله الثقافية سواء أكان ذلك عبر الدين الإسلامي أو العادات والتقاليد أو التراث مما يبني شخصية متوازنة متطورة متميزة.
Worksheet(1) UNITS pg NO ( 6 , 7) textbook
The Standards : - Be familiar with fundamental and derived SI units and use appropriate prefixes, manipulate ranges of magnitude and express quantities correctly in standard form in SI format.
Definition: Physical Quantity
A physical quantity is anything that you can measure. For example, length, temperature, distance and time are physical quantities.
Unit الوحدة - Symbol الرمز - physical quantity كميات فيزيائية -
Base quantities and units :
Symbol
Unit
Physical quantity
Length
kg
Second
Electrical current
Kelvin
Mole
cd
Derived quantities and units :
Symbol
Unit
Physical quantity
Kg / m3
Kilogram per cubic meter
Density
Kg m / s
Kilogram meter per second
Momentum
Newton
Force
Pascal
Pressure
Joule
Work ( energy )
Watt
Power
Coulomb
Electrical charge
Volt
Potential difference
Ω
Ohm
Resistance
What did you learn ?
Khalifa Secondary Independent School for Boys
Physics Department
Date: / /
Grade: 10 A ( SI units )
Name:………………………………...………………………………………
رؤية المدرسة: تخريج جيل من الطلاب، متعلم ومثقف، متمسك بأصوله الثقافية سواء أكان ذلك عبر الدين الإسلامي أو العادات والتقاليد أو التراث مما يبني شخصية متوازنة متطورة متميزة.
Worksheet(2) – UNITS - pg NO ( 8 , 9 ) textbook
The Standards : - Distinguish between precision and accuracy; know how to ensure both in physical procedures.
Prefixes :
Multiplier
Sympol
prefix
G
giga
M
mega
K kilo
M milli
μ micro
n nano
P pico
What did you learn ?
Khalifa Secondary Independent School for Boys
Physics Department
Date: / /
Grade: 10 A ( SI units )
Name:………………………………...………………………………………
رؤية المدرسة: تخريج جيل من الطلاب، متعلم ومثقف، متمسك بأصوله الثقافية سواء أكان ذلك عبر الدين الإسلامي أو العادات والتقاليد أو التراث مما يبني شخصية متوازنة متطورة متميزة.
Scientific notation الصورة العلمية - decimal العشري
Scientific Notation :
Steps :
Move decimal left
Leave only one number in front of decimal
Write number without zeros
Count how many places you moved decimal . Make that your power of ten
Practice Problem :
Q1 ) Write in scientific notation Decide the power of ten.
a) 93000000 = …………………………….
b) 98500000 = ………………….………….
c) 64100000000 = …………………………….
d) 0.0000000042 = …………………………..
e) 0.00000000902 = …………………………..
Changing scientific notation to standard form :
Simply move the decimal point to the right for positive exponent 10
Move the decimal point to the left for negative exponent 10
(Use zeros to fill in places.)
Q2 ) Express 1.8 x 10-4 in decimal notation.
Answer : ……………………………………………………………………………….
Q3 ) Express 4.58 x 106 in decimal notation
Answer : ………………………………………………………………………………..
Q4 ) Given: 5.093 x 106
Answer : ………………………………………………………………………………..
Q5 ) Given: 1.976 x 10-4
Answer : ………………………………………………………………………………...
Chick your answer :
1 – Complete :
1 – 10 minutes = sec
2 – 5 km = m
3 – 200 kg = gm
4 – 300 Cm = m
5 – 1000 gm = kg
2 – Match each quantity in group ( A ) with its corresponding unit in group ( B )
Group ( A ) Group ( B )
Speed Ohm
Force Volt
Pressure coulomb
Acceleration Watt
Power m / s
Resistance Newton
Potential difference m / s2
Electric charge Pascal
3 – Can you complete the following sentences :
1 – Measurement must be given as a number multiplied by a …………….
2 – Seconds , meters , kilograms are all ………………. Units .
3 – The units made up of combination of base units are known as ………. Units .
4 – Put ( √ ) in front of the correct statement and ( x ) in from of the wrong one
and try to correct the wrong one .
1 – The meter is a derived quantity .
2 – meter / sec is the measuring unit of velocity .
3 – N / m2 is the measuring unit of pressure .
4 – kg m-3 is the measuring unit of density .
5 – Newton is the measuring unit of Force .
6 – Pascal is the measuring unit of pressure .
7 - Joule is the measuring unit of power .
8 – Watt is the measuring unit of work ( energy ) .
5 – Rewrite each of the following quantities using a suitable prefix :
1 – 2 000 000 000 J =
2 – 5900 g =
3 – 0.005 sec =
4 – 345000 N =
5 – 0.000 02 m =
Khalifa Secondary Independent School for Boys
Physics Department
Date:
Grade: 10 Vectors and scalars
Name:………………………………...………………………………………
رؤية المدرسة: تخريج جيل من الطلاب، متعلم ومثقف، متمسك بأصوله الثقافية سواء أكان ذلك عبر الدين الإسلامي أو العادات والتقاليد أو التراث مما يبني شخصية متوازنة متطورة متميزة.
Worksheet(3) – UNITS - pg NO ( 10 ) textbook
The standard : - Distinguish between vector and scalar quantities, manipulate them appropriately and interpret their meaning.
Vectors المتجه - scalars quantities الكمية القياسية - magnitude قيمه
Vectors and scalars quantities
Scalar quantity :
which have magnitude (size) without direction .
Examples :
time, speed and distance
Vector quantity :
which have magnitude (size) and direction .
Examples :
velocity, acceleration , displacement ,weight and force
what did you learn ?
In your text book .. read about Vectors and scalars :
• Use the quantities physics to Complete the table bellow :
Distance – displacement – speed – velocity – mass – weight – pressure – force – energy – momentum – temperature – acceleration – volume – electric current – density – torque .
Scalars quantities Vectors quantities
what did you learn ?
Representing vectors :
• Vectors can be represented by arrows .
- The length of the arrow represents the magnitude of the vector .
- The direction of the arrow represents the direction of the vector .
Some examples :
a) Force vectors :
1 - draw a horizontal force of 20 N
2 - draw a vertical force of 10 N
3 – draw the vector for a force of 15 N at 20 to the horizontal .
b) Velocity vectors :
1 – Draw a velocity of 30 m/s in N E direction
2 – Draw a velocity of 20 m/s due west .
3 - Draw a velocity of 30 m/s in N W direction
Khalifa Secondary Independent School for Boys
Physics Department
Date:
Grade: 10
Name:………………………………...………………………………………
Worksheet(4) – UNITS - pg NO ( 10 ) textbook
Horizontal أفقي - vertical رأسي - Vector quantity كميات متجهه - Scalar quantity كميات قياسية
* Complete the following table with the suitable quantities and units :
Vector quantity unit Scalar quantity Unit
* Draw the diagram which represent the following states :
a) A horizontal force of 5 N
b) A vertical force of 15 N
c) A velocity of 40 m/s in a NE direction
d) A velocity of 30 m/s due west .
-----------------------------------------------------------------------------------------------------------------
Website :
1. www.physicsclassroom.com/Class/1DKin/U1L1b.cfm
http://physics.nist.gov/cuu/Units/units.html
Table 5. SI prefixes :
Factor Name Symbol Factor Name Symbol
101 deca da 10–1 deci D
102 hecto h 10–2 centi C
103 kilo k 10–3 milli M
106 mega M 10–6 micro µ
109 giga G 10–9 nano N
1012 tera T 10–12 pico P
1015 peta P 10–15 femto F
1018 exa E 10–18 atto A
1021 zetta Z 10–21 zepto Z
1024 yotta Y 10–24 yocto Y
Prefix symbols are printed
Khalifa Secondary Independent School for Boys
Physics Department
Date:
Grade: 10
Name:………………………………...………………………………………
Worksheet(5) – UNITS – pg NO ( 11 ) textbook
Vector addition جمع المتجهات - resultant الناتجة -
Vector addition
The vectors resultant :
F1
a) In the same direction : F2
Resultant = F1 + F2 resultant F1+F2
b) In opposite direction : F1
Resultant = F1- F2 F2
resultant F1- F2
Examples :
Find the resultant to :
1 – When you walk at steady velocity of 1.5 m/s and walk forwards along the
walkway at 2 m/s . what is the resultant velocity ?
2 – One Vector 10 m at North direction and 15 m at south direction .
What did you learn ?
Khalifa Secondary Independent School for Boys
Physics Department
Date :
Grade: 10
Name:………………………………...………………………………………
Worksheet(6) – UNITS – pg NO ( 12 ) textbook
Perpendicular vectors المتجهات المتعامدة
Perpendicular vectors
a. A man tries to row directly across a river. He rows at a velocity of 3 ms-1. The river has a current of velocity 4 ms-1 parallel to the banks. Calculate the resultant velocity of the boat.
b. Two ropes are tied to a large boulder one. Rope is pulled with a force of 400 N due east. The other rope is pulled with a force of 300 N due south.
a) Draw a vector diagram to show these forces.
b) What is the magnitude and direction of the resultant force on the boulder?
What did you learn ?
3) Calculate the resultant of the two following vectors:
R 3N
4N
4) Calculate the resultant of the two following vectors:
8N
6N
R
Khalifa Secondary Independent School for Boys
Physics Department
Date:
Grade: 10
Name:………………………………...……………………………………… Group ( )
Worksheet(7) – UNITS – pg NO ( 14 ) textbook
Resolving vectors تحليل المتجهات
Resolving vectors
1) A tennis player hits a ball at 10 m s-1 at an angle of 30o to the ground what are the initial
horizontal and vertical components of velocity of the ball??
2) 2) A ball is kicked with a force of 120 N at 60ْ to the horizontal
3) Calculate the horizontal component of the force.
4) Calculate the vertical component of the force.
What did you learn ?
3) Write the X component and the Y component of the vector 10 N
A
10N
30ْ
AX =
AY =
4) Write the X component and the Y component of the vector 8 N
60ْ
8N
A
AX =
AY =
LAB REPORT/ Grade 10 A
10A.25.2
The standard :- Distinguish between precision and accuracy; know how to ensure both in physical procedures.
Student Name: ………………………………………………… class /
Using instruments to measure the values of physical quantities:
Instrument (1)
The shape on the left side represents a ruler.
What is the main purpose of the ruler? And what it can help you to do?
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Method:
1- Use the ruler to measure the length of your pen
2- Record your answer using appropriate scale and convert it to meters.
Record in ( cm ) Record in (meters)
1
2
Instrument (2)
The shape on the left side represents a Micrometer.
Do you think we can measure the thickness of a paper or the opening of a Pepsi bottle?
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Method:
1-Use the micrometer to measure the thickness of the paper.
2- Record your answer using appropriate scale and change it to centimeters.
Record in ( mm ) Record in (m)
1 Paper thickness
2 Metal bar
Instrument (3)
Record in ( mm ) Record in ( m )
1 Pen diameter
2 Book thickness
Khalifa Secondary Independent School for Boys
Physics Department
Date : / /
Name : ………………………………………………………………. Group ( )
Home work ( 1 )
Accuracy الدقة - precision الدقة - derived units الوحدات المشتقة
Q1) Write the term that correctly completes each statement. Use each term once.
Accuracy base units derived unit's kilogramMeter precision scientific notation second
SI significant digits
1. The SI base unit of mass is the ----------------------------.
2. The SI base unit of length is the ----------------------------
3. The System International d’Unités, --------------------------- , is a system of
measurement established by an international committee.
4. Units that are combinations of base units are ----------------------------
5. The SI base unit of time is the ----------------------------
Q1: Multiple choices: For each question, choose the answer you consider the best
Which of the following is a base unit.
a. centigrade
b. ampere
c. centimeter
d. watts
The SI unit of mass is
a. gram
b. kilogram
c. centigram
d. mille
If the SI unit of force is N, then SI unit for displacement and weight are:
a. cm and ms-1
b. m and N
c. m and kg
d. km and ms-1
Khalifa Secondary Independent School for Boys
Physics Department
Date : / / Grade 10
Name : ……………………………………………………………….
Home work ( 2 )
Q1) Write in scientific notation Decide the power of ten.
1) 98500000 = ------------------------
2) 0.0000641 = -----------------------
3) 279000000 = ------------------------
Q2) Express 0.0000000902 in scientific notation.
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Q3) Express 1.8 x 10-4 in decimal notation
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Q4) Express 4.58 x 106 in decimal notation.
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Q5) Changing scientific notation to standard form.
1) 5.093 x 106 = -----------------------
2) 1.976 x 10-4 = -----------------------
Khalifa independent secondary school for boys
Physics department
Date: Unit (2 )
Grade: 10 ( motion )
Name:………………………………...………………………………………
رؤية المدرسة: تخريج جيل من الطلاب، متعلم ومثقف، متمسك بأصوله الثقافية سواء أكان ذلك عبر الدين الإسلامي أو العادات والتقاليد أو التراث مما يبني شخصية متوازنة متطورة متميزة.
Worksheet (1) units pg NO. 32- 35
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The standards : Understand the concepts of displacement, speed, velocity and acceleration, represent them graphically and interpret graphs that represent them.
Acceleration العجلة - displacement الإزاحة - scalar quantity الكمية القياسية vector quantity كمية المتجهات velocity السرعة المتجهة speed السرعة
Mechanics
Describing motion
Distance : It is a scalar quantity describe the total length of the path travel by an object
Displacement : It is a vector quantity describe the length of the straight line between the
initial point and the final point of the object .
Or : Its direction is from the initial point to the final point .
d
* The graph in shown ( a ) initial point ( d ) final point ) : c
# Distance =
# Displacement = a b
Work sheet :
Q1 : * look to the graph and find : 50 km 30 km
- distance =
- displacement = 40 km
What did you learn ?
Q2 : Complete the table :
Distance Displacement
Definition
SI unit
The kind of quantity
Speed : Is the distance moved per unit time . or ( rate of change distance )
- The S I unit for speed is the meter per second ( m /s or ms-1 ) .
- It is scalar quantity.
Speed = distance moved ( m )
Time taken ( s )
Note :
- If the speed is not constant .
we calculate the average speed for the whole journey instead
Average speed = total distance traveled ( m )
Total time taken ( S )
Example ( 1 ) :
A boy running in a race covers 60 m in 12 s .
a) What is the speed in ms-1 .
b) If the boy takes 40 s to complete the race , how far did he run ?
Velocity : It is the rate of change of displacement .
- It is a vector quantity .
average Velocity = total displacement ( m )
Time taken ( s )
Note : For motion in a straight line you can use a + or – to indicate direction .
For example :
+ 10 m / s ( velocity of 10 m / s to the right )
- 10 m / s ( velocity of 10 m / s to the left )
Acceleration : is the rate of change of velocity .
- The S I unit is ( meter per square second ) ( m/s2 or ms-2 )
- It is a vector quantity .
Acceleration = change in velocity
Time
Acceleration = ( final velocity – initial velocity )
Time taken
a = v – u
t
Note :
1 - If the velocity increases .
- We say it is positive acceleration or ( accelerating تعجيل )
2 - If the velocity decreases .
- We say it is negative acceleration or ( deceleration تباطؤ )